From saying Bazinga to singing Soft Kitty to Sheldon's schedule, we ranked "The Big Bang Theory's" running jokes from ...

There are seven main characters on the beloved CBS sitcom "The Big Bang Theory" — so who's the worst, and who's the best?

As Penny Hofstadter and Sheldon Cooper on "The Big Bang Theory," Jim Parsons and Kaley Cuoco share plenty of moments that range from uncomfortable to flat-out sweet — but in real life, they've also ...

The Big Bang Theory is, at its heart, about relationships. The geek culture references, cameos, and science speak are dressings, and funny ones at that. But from the very beginning, the series set ...